Could blackberry root tea help tame Graves' disease?

NCT ID NCT07164079

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether a tea made from wild blackberry root could improve thyroid health in people with Graves' disease, an autoimmune condition that causes an overactive thyroid. Forty-two adults with newly diagnosed or relapsed Graves' disease drank either the blackberry root tea or a placebo tea every day for 8 weeks. Researchers measured thyroid hormones, autoimmune markers, and thyroid structure to see if the extract had any effect.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

wild blackberry root extract

What this could lead to

If it works, this could point toward a natural supplement to help manage Graves' disease alongside standard treatment.

What could go wrong

This is a small, early-stage study with only 42 people. The results may not apply to everyone, and the extract might not have a meaningful effect on the disease.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Muğla Sıtkı Koçman University/Muğla Training and Research Hospital Endocrine and Metabolic Diseases Polyclinic

    Muğla, Mentese, 48000, Turkey (Türkiye)